#include "stdafx.h"

/*  -- translated by f2c (version 19940927).
   You must link the resulting object file with the libraries:
	-lf2c -lm   (in that order)
*/

#include "hnum_f2c.h"
namespace harlinn
{
    namespace numerics
    {
        namespace SuperLU
        {
            int srot_(integer *n, real *sx, integer *incx, real *sy, integer *incy, real *c, real *s)
            {


                /* System generated locals */
                integer i__1;

                /* Local variables */
                static integer i;
                static real stemp;
                static integer ix, iy;


            /*     applies a plane rotation.   
                    jack dongarra, linpack, 3/11/78.   
                    modified 12/3/93, array(1) declarations changed to array(*)   


    
                Parameter adjustments   
                    Function Body */
            #define SY(I) sy[(I)-1]
            #define SX(I) sx[(I)-1]


                if (*n <= 0) {
	            return 0;
                }
                if (*incx == 1 && *incy == 1) {
	            goto L20;
                }

            /*       code for unequal increments or equal increments not equal   
                        to 1 */

                ix = 1;
                iy = 1;
                if (*incx < 0) {
	            ix = (-(*n) + 1) * *incx + 1;
                }
                if (*incy < 0) {
	            iy = (-(*n) + 1) * *incy + 1;
                }
                i__1 = *n;
                for (i = 1; i <= *n; ++i) {
	            stemp = *c * SX(ix) + *s * SY(iy);
	            SY(iy) = *c * SY(iy) - *s * SX(ix);
	            SX(ix) = stemp;
	            ix += *incx;
	            iy += *incy;
            /* L10: */
                }
                return 0;

            /*       code for both increments equal to 1 */

            L20:
                i__1 = *n;
                for (i = 1; i <= *n; ++i) {
	            stemp = *c * SX(i) + *s * SY(i);
	            SY(i) = *c * SY(i) - *s * SX(i);
	            SX(i) = stemp;
            /* L30: */
                }
                return 0;
            } /* srot_ */

        };
    };
};